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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/layout/ng/inline/ng_physical_text_fragment.h"
#include "third_party/blink/renderer/core/layout/ng/geometry/ng_logical_rect.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_inline_fragment_traversal.h"
#include "third_party/blink/renderer/core/layout/ng/ng_layout_test.h"
#include "third_party/blink/renderer/core/layout/ng/ng_physical_box_fragment.h"
namespace blink {
class NGPhysicalTextFragmentTest : public NGLayoutTest {
public:
NGPhysicalTextFragmentTest() : NGLayoutTest() {}
protected:
Vector<scoped_refptr<const NGPhysicalTextFragment>>
CollectTextFragmentsInContainer(const char* container_id) {
const Element* container = GetElementById(container_id);
DCHECK(container) << container_id;
const LayoutObject* layout_object = container->GetLayoutObject();
DCHECK(layout_object) << container;
DCHECK(layout_object->IsLayoutBlockFlow()) << container;
const NGPhysicalBoxFragment* root_fragment =
ToLayoutBlockFlow(layout_object)->CurrentFragment();
DCHECK(root_fragment) << container;
Vector<scoped_refptr<const NGPhysicalTextFragment>> result;
for (const auto& child :
NGInlineFragmentTraversal::DescendantsOf(*root_fragment)) {
if (child.fragment->IsText())
result.push_back(ToNGPhysicalTextFragment(child.fragment.get()));
}
return result;
}
static std::string GetText(const NGPhysicalTextFragment& fragment) {
return fragment.Text().ToString().Utf8().data();
}
};
TEST_F(NGPhysicalTextFragmentTest, LocalRect) {
LoadAhem();
SetBodyInnerHTML(R"HTML(
<style>
div {
font: 10px/1 Ahem;
width: 5em;
}
</style>
<div id=container>01234 67890</div>
)HTML");
auto text_fragments = CollectTextFragmentsInContainer("container");
ASSERT_EQ(2u, text_fragments.size());
EXPECT_EQ(NGPhysicalOffsetRect({LayoutUnit(20), LayoutUnit(0)},
{LayoutUnit(20), LayoutUnit(10)}),
text_fragments[1]->LocalRect(8, 10));
}
TEST_F(NGPhysicalTextFragmentTest, LocalRectRTL) {
LoadAhem();
SetBodyInnerHTML(R"HTML(
<style>
div {
font: 10px/1 Ahem;
width: 10em;
direction: rtl;
unicode-bidi: bidi-override;
}
</style>
<div id=container>0123456789 123456789</div>
)HTML");
auto text_fragments = CollectTextFragmentsInContainer("container");
ASSERT_EQ(2u, text_fragments.size());
// The 2nd line starts at 12, because the div has a bidi-control.
EXPECT_EQ(12u, text_fragments[1]->StartOffset());
EXPECT_EQ(NGPhysicalOffsetRect({LayoutUnit(50), LayoutUnit(0)},
{LayoutUnit(20), LayoutUnit(10)}),
text_fragments[1]->LocalRect(14, 16));
}
TEST_F(NGPhysicalTextFragmentTest, LocalRectVLR) {
LoadAhem();
SetBodyInnerHTML(R"HTML(
<style>
div {
font: 10px/1 Ahem;
height: 5em;
writing-mode: vertical-lr;
}
</style>
<div id=container>01234 67890</div>
)HTML");
auto text_fragments = CollectTextFragmentsInContainer("container");
ASSERT_EQ(2u, text_fragments.size());
EXPECT_EQ(NGPhysicalOffsetRect({LayoutUnit(0), LayoutUnit(20)},
{LayoutUnit(10), LayoutUnit(20)}),
text_fragments[1]->LocalRect(8, 10));
}
TEST_F(NGPhysicalTextFragmentTest, LocalRectVRL) {
LoadAhem();
SetBodyInnerHTML(R"HTML(
<style>
div {
font: 10px/1 Ahem;
height: 5em;
writing-mode: vertical-rl;
}
</style>
<div id=container>01234 67890</div>
)HTML");
auto text_fragments = CollectTextFragmentsInContainer("container");
ASSERT_EQ(2u, text_fragments.size());
EXPECT_EQ(NGPhysicalOffsetRect({LayoutUnit(0), LayoutUnit(20)},
{LayoutUnit(10), LayoutUnit(20)}),
text_fragments[1]->LocalRect(8, 10));
}
TEST_F(NGPhysicalTextFragmentTest, NormalTextIsNotAnonymousText) {
SetBodyInnerHTML("<div id=div>text</div>");
auto text_fragments = CollectTextFragmentsInContainer("div");
ASSERT_EQ(1u, text_fragments.size());
const NGPhysicalTextFragment& text = *text_fragments[0];
EXPECT_FALSE(text.IsAnonymousText());
}
TEST_F(NGPhysicalTextFragmentTest, FirstLetterIsNotAnonymousText) {
SetBodyInnerHTML(
"<style>::first-letter {color:red}</style>"
"<div id=div>text</div>");
auto text_fragments = CollectTextFragmentsInContainer("div");
ASSERT_EQ(2u, text_fragments.size());
const NGPhysicalTextFragment& first_letter = *text_fragments[0];
const NGPhysicalTextFragment& remaining_text = *text_fragments[1];
EXPECT_FALSE(first_letter.IsAnonymousText());
EXPECT_FALSE(remaining_text.IsAnonymousText());
}
TEST_F(NGPhysicalTextFragmentTest, BeforeAndAfterAreAnonymousText) {
SetBodyInnerHTML(
"<style>::before{content:'x'} ::after{content:'x'}</style>"
"<div id=div>text</div>");
auto text_fragments = CollectTextFragmentsInContainer("div");
ASSERT_EQ(3u, text_fragments.size());
const NGPhysicalTextFragment& before = *text_fragments[0];
const NGPhysicalTextFragment& text = *text_fragments[1];
const NGPhysicalTextFragment& after = *text_fragments[2];
EXPECT_TRUE(before.IsAnonymousText());
EXPECT_FALSE(text.IsAnonymousText());
EXPECT_TRUE(after.IsAnonymousText());
}
TEST_F(NGPhysicalTextFragmentTest, Ellipsis) {
LoadAhem();
SetBodyInnerHTML(R"HTML(
<style>
#sample {
font: 10px/1 Ahem;
overflow: hidden;
text-overflow: ellipsis;
width: 4ch;
}
</style>
<p id="sample">abcdef</p>
)HTML");
auto text_fragments = CollectTextFragmentsInContainer("sample");
ASSERT_EQ(2u, text_fragments.size());
const NGPhysicalTextFragment& abcdef = *text_fragments[0];
const NGPhysicalTextFragment& ellipsis = *text_fragments[1];
EXPECT_EQ(NGPhysicalTextFragment::kNormalText, abcdef.TextType());
EXPECT_FALSE(abcdef.IsGeneratedText());
EXPECT_EQ(u8"abc", GetText(abcdef));
EXPECT_EQ(NGPhysicalTextFragment::kGeneratedText, ellipsis.TextType());
EXPECT_TRUE(ellipsis.IsGeneratedText());
EXPECT_EQ(u8"\u2026", GetText(ellipsis));
}
TEST_F(NGPhysicalTextFragmentTest, ListMarkerIsAnonymousText) {
SetBodyInnerHTML(
"<ol style='list-style-position:inside'>"
"<li id=list>text</li>"
"</ol>");
auto text_fragments = CollectTextFragmentsInContainer("list");
ASSERT_EQ(2u, text_fragments.size());
const NGPhysicalTextFragment& marker = *text_fragments[0];
const NGPhysicalTextFragment& text = *text_fragments[1];
EXPECT_TRUE(marker.IsAnonymousText());
EXPECT_FALSE(text.IsAnonymousText());
}
TEST_F(NGPhysicalTextFragmentTest, SoftHyphen) {
LoadAhem();
SetBodyInnerHTML(R"HTML(
<style>
#sample {
font: 10px/1 Ahem;
width: 3ch;
}
</style>
<p id="sample">abc­def</p>
)HTML");
auto text_fragments = CollectTextFragmentsInContainer("sample");
ASSERT_EQ(3u, text_fragments.size());
const NGPhysicalTextFragment& abc = *text_fragments[0];
const NGPhysicalTextFragment& shy = *text_fragments[1];
const NGPhysicalTextFragment& def = *text_fragments[2];
EXPECT_EQ(NGPhysicalTextFragment::kNormalText, abc.TextType());
EXPECT_FALSE(abc.IsGeneratedText());
// Note: ShapeResult::RunInfo.width_ == 0 for U+00AD
EXPECT_EQ(u8"abc\u00AD", GetText(abc));
EXPECT_EQ(NGPhysicalTextFragment::kGeneratedText, shy.TextType());
EXPECT_TRUE(shy.IsGeneratedText());
// Note: |ComputedStyle::HypenString()| returns "-" or U+2010 based on
// glyph availability.
if (GetText(shy) != "-")
EXPECT_EQ(u8"\u2010", GetText(shy));
EXPECT_EQ(NGPhysicalTextFragment::kNormalText, def.TextType());
EXPECT_FALSE(def.IsGeneratedText());
}
TEST_F(NGPhysicalTextFragmentTest, QuotationMarksAreAnonymousText) {
SetBodyInnerHTML("<div id=div><q>text</q></div>");
auto text_fragments = CollectTextFragmentsInContainer("div");
ASSERT_EQ(3u, text_fragments.size());
const NGPhysicalTextFragment& open_quote = *text_fragments[0];
const NGPhysicalTextFragment& text = *text_fragments[1];
const NGPhysicalTextFragment& closed_quote = *text_fragments[2];
EXPECT_TRUE(open_quote.IsAnonymousText());
EXPECT_FALSE(text.IsAnonymousText());
EXPECT_TRUE(closed_quote.IsAnonymousText());
}
} // namespace blink
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